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PatchSiren cyber security CVE debrief

CVE-2026-57088 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-14T18:18:33.080Z and has not been modified since then. The NVD entry is currently Analyzed. This vulnerability, caused by improper access control in the Extensible Storage Engine (ESENT), allows an authorized attacker to elevate privileges locally. It affects Windows 10, Windows Server 2019, Windows Server 2022, and Windows Server 2025 systems. System administrators and security teams should be aware of this vulnerability and take necessary actions to mitigate the risk.

Vendor
Microsoft
Product
Extensible Storage Engine (ESENT)
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-23
Advisory published
2026-07-14
Advisory updated
2026-07-23

Who should care

System administrators and security teams responsible for Windows 10, Windows Server 2019, Windows Server 2022, and Windows Server 2025 systems should be aware of this vulnerability and take necessary actions to mitigate the risk. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Technical summary

The vulnerability is caused by improper access control in the Extensible Storage Engine (ESENT). An authorized attacker can exploit this vulnerability to elevate privileges locally. The vulnerability affects Windows 10, Windows Server 2019, Windows Server 2022, and Windows Server 2025 systems. The vulnerability can be mitigated by applying the patch provided by Microsoft.

Defensive priority

High

Recommended defensive actions

  • Apply the patch provided by Microsoft
  • Conduct a thorough inventory of affected systems
  • Implement compensating controls to limit the attack surface
  • Monitor system logs for suspicious activity
  • Consider implementing additional security measures to prevent local privilege escalation

Evidence notes

The CVE record and NVD detail provide information on the vulnerability, its impact, and affected systems. Microsoft has provided a patch for this vulnerability. The vulnerability is caused by improper access control in the Extensible Storage Engine (ESENT). An authorized attacker can exploit this vulnerability to elevate privileges locally. The vulnerability affects Windows 10, Windows Server 2019, Windows Server 2022, and Windows Server 2025 systems. There is no evidence of public exploitation or widespread impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-57088 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-57088

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-57088 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-57088

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.